GPS navigation, WINCE 5.0 Core; Chip:MStar MSB2501,400 MHZ, ARM926 core, 64MB DDR2, 128M SLC NANDFLASH, Screen size: ... 4.8" GPS navigation1,System Parameter Chip:MStar MSB2501,400 MHZ ARM926 core 64MB DDR2 128M SLC NANDFLASH Built -in ... MHZ chip rate GPS navigation(4.8 inch touch screen, PM-NA-048E)